Overview
A Y-shaped reconstruction that keeps bile away from food.
Roux-en-Y gastrojejunostomy (RYGJ) is a reconstruction in which the jejunum is divided and arranged in a Y shape. One limb — the Roux limb — is brought up to the stomach and joined to it (the gastrojejunostomy). The other limb — the biliary limb — carries bile and pancreatic juice from the duodenum and is reconnected to the side of the Roux limb 60–80 cm downstream (the jejunojejunostomy). The result: food from the stomach travels down the Roux limb without meeting bile until well past the new anastomosis, which prevents bile reflux into the stomach and esophagus.
We use this reconstruction in three main settings. First, after a partial or distal gastrectomy, when the surgeon and patient prefer the antireflux protection of a Roux configuration over a simpler Billroth I or II. Second, as a palliative bypass when a tumor at the gastric outlet or in the duodenum cannot be removed but is causing obstruction — the bypass restores the ability to eat. Third, as part of more complex foregut reconstruction (including Whipple) or as a revision after failed previous surgery with troublesome bile reflux.
Who is a candidate?
Anyone who needs a reconstruction or bypass of the stomach or proximal small bowel. The most common reasons are reconstruction after distal gastrectomy, bypass of unresectable tumor at the gastric outlet, treatment of severe bile reflux from a previous Billroth II, or as one of the anastomoses in a Whipple. Patients with limited life expectancy from advanced cancer may benefit even from a palliative bypass to restore comfort and the ability to eat.
How we perform it
You are asleep under general anesthesia. Four to five small ports are placed in the upper abdomen for the robot or laparoscope. We identify the ligament of Treitz, measure 30–50 cm down the jejunum, and divide the bowel with a stapler. The distal end (the Roux limb) is brought up to the stomach (antecolic or retrocolic) and anastomosed to it using staplers and selective hand-sewn reinforcement. The proximal (biliary) end is then reconnected to the side of the Roux limb 60–80 cm downstream, completing the Y. We close all mesenteric defects to prevent internal hernias.
Recovery
Most patients stay 3–5 days in the hospital — sometimes longer when the RYGJ is part of a larger operation. We start clear liquids on day 1 or 2, advance to a soft diet by 1–2 weeks. Most patients return to normal activity at 4 weeks. Long-term, the reconstruction is durable and protects against bile reflux, but careful closure of mesenteric defects is essential to prevent internal hernia, which can occur months to years later.
Why Florida Surgical
RYGJ is a foregut workhorse and we perform it routinely as part of gastric resection, palliative bypass, and complex reconstruction. Dr. Shaw is fellowship-trained in HPB and surgical oncology and uses the robot for the anastomoses whenever possible — the precise visualization and articulating instruments shine in this setting. The same surgeon who plans the operation performs the anastomoses and follows you afterward.
Frequently asked questions
What is the Roux-en-Y configuration?
Roux-en-Y is the name for a Y-shaped intestinal reconnection. The jejunum is divided, and one limb (the Roux limb) is connected upward to the stomach or esophagus or bile duct. The other limb (the biliary limb) is reconnected 60–80 cm downstream so that bile and pancreatic juice meet food only well past the new anastomosis.
Is this the same as gastric bypass for weight loss?
The reconstruction is the same shape, but the operation is different. In bariatric Roux-en-Y gastric bypass we also create a small stomach pouch. In a Roux-en-Y gastrojejunostomy for reconstruction or bypass of disease, we use the configuration without creating a small pouch — the goal is reconstruction or bypass, not weight loss.
When is it used?
We perform Roux-en-Y gastrojejunostomy as part of reconstruction after partial gastrectomy or distal gastrectomy, to bypass an unresectable distal gastric or duodenal cancer, to treat bile reflux disease, and as part of complex revision foregut surgery. It is also a key step in pancreaticoduodenectomy (Whipple).
Can it be done robotically?
Yes. Most Roux-en-Y gastrojejunostomies are now done robotically or laparoscopically. The robot is particularly helpful for the anastomosis and for handling redo or complex anatomy.
What are the risks?
Bleeding, anastomotic leak, internal hernia (long-term — through the mesenteric defects created), and stricture at the anastomosis are the main risks. We close all mesenteric defects routinely to minimize internal hernia.